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Gas Chromatography (GC) is a mature analytical technology used predominately for separating and quantifying the components of complex organic chemical mixtures. A wide array of column chemistries, sample introduction techniques, and detection schemes allow GC to address most analytical problems for volatile and semivolatile compounds. The coupling of GC with mass spectrometric detection (GC-MS) has extended the use of this technique to include compound identification and today many official standardized methods rely exclusively on GC-MS technology. However, there are some limitations associated with MS detection, particularly in the analysis of isomeric, isobaric, small, or labile compounds. In these cases where MS struggles with species differentiation, additional measures must be employed, often at significant cost…
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